Vulnerability-Lookup

CNVD-2022-37792

Vulnerability from cnvd - Published: 2022-05-18

Title

OpenSSL拒绝服务漏洞（CNVD-2022-37792）

Description

OpenSSL是Openssl团队的一个开源的能够实现安全套接层（SSLv2/v3）和安全传输层（TLSv1）协议的通用加密库。该产品支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL存在拒绝服务漏洞，该漏洞源于清空哈希表的 OPENSSL_LH_flush()函数包含一个错误，该错误会破坏已删除的哈希表条目占用的内存的重用。攻击者可利用该漏洞发起拒绝服务攻击。

Severity

中

Patch Name

OpenSSL拒绝服务漏洞（CNVD-2022-37792）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=64c85430f95200b6b51fe9475bd5203f7c19daf1

Reference

https://nvd.nist.gov/vuln/detail/CVE-2022-1473

Impacted products

Name
['Openssl OpenSSL 3.0.0', 'Openssl OpenSSL 3.0.1', 'Openssl OpenSSL 3.0.2']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-1473",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-1473"
    }
  },
  "description": "OpenSSL\u662fOpenssl\u56e2\u961f\u7684\u4e00\u4e2a\u5f00\u6e90\u7684\u80fd\u591f\u5b9e\u73b0\u5b89\u5168\u5957\u63a5\u5c42\uff08SSLv2/v3\uff09\u548c\u5b89\u5168\u4f20\u8f93\u5c42\uff08TLSv1\uff09\u534f\u8bae\u7684\u901a\u7528\u52a0\u5bc6\u5e93\u3002\u8be5\u4ea7\u54c1\u652f\u6301\u591a\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5305\u62ec\u5bf9\u79f0\u5bc6\u7801\u3001\u54c8\u5e0c\u7b97\u6cd5\u3001\u5b89\u5168\u6563\u5217\u7b97\u6cd5\u7b49\u3002\n\nOpenSSL\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u6e05\u7a7a\u54c8\u5e0c\u8868\u7684 OPENSSL_LH_flush()\u51fd\u6570\u5305\u542b\u4e00\u4e2a\u9519\u8bef\uff0c\u8be5\u9519\u8bef\u4f1a\u7834\u574f\u5df2\u5220\u9664\u7684\u54c8\u5e0c\u8868\u6761\u76ee\u5360\u7528\u7684\u5185\u5b58\u7684\u91cd\u7528\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53d1\u8d77\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=64c85430f95200b6b51fe9475bd5203f7c19daf1",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-37792",
  "openTime": "2022-05-18",
  "patchDescription": "OpenSSL\u662fOpenssl\u56e2\u961f\u7684\u4e00\u4e2a\u5f00\u6e90\u7684\u80fd\u591f\u5b9e\u73b0\u5b89\u5168\u5957\u63a5\u5c42\uff08SSLv2/v3\uff09\u548c\u5b89\u5168\u4f20\u8f93\u5c42\uff08TLSv1\uff09\u534f\u8bae\u7684\u901a\u7528\u52a0\u5bc6\u5e93\u3002\u8be5\u4ea7\u54c1\u652f\u6301\u591a\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5305\u62ec\u5bf9\u79f0\u5bc6\u7801\u3001\u54c8\u5e0c\u7b97\u6cd5\u3001\u5b89\u5168\u6563\u5217\u7b97\u6cd5\u7b49\u3002\r\n\r\nOpenSSL\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u6e05\u7a7a\u54c8\u5e0c\u8868\u7684 OPENSSL_LH_flush()\u51fd\u6570\u5305\u542b\u4e00\u4e2a\u9519\u8bef\uff0c\u8be5\u9519\u8bef\u4f1a\u7834\u574f\u5df2\u5220\u9664\u7684\u54c8\u5e0c\u8868\u6761\u76ee\u5360\u7528\u7684\u5185\u5b58\u7684\u91cd\u7528\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53d1\u8d77\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "OpenSSL\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2022-37792\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Openssl OpenSSL 3.0.0",
      "Openssl OpenSSL 3.0.1",
      "Openssl OpenSSL 3.0.2"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2022-1473",
  "serverity": "\u4e2d",
  "submitTime": "2022-05-08",
  "title": "OpenSSL\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2022-37792\uff09"
}

CVE-2022-1473 (GCVE-0-2022-1473)

Vulnerability from cvelistv5 – Published: 2022-05-03 15:15 – Updated: 2025-05-05 16:42

Title

Resource leakage when decoding certificates and keys

Summary

The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:27 UTC

CWE

Denial of Service
CWE-459 - Incomplete Cleanup

Assigner

openssl mitre root

References

5 references

URL	Tags
https://www.openssl.org/news/secadv/20220503.txt
https://git.openssl.org/gitweb/?p=openssl.git%3Ba…
https://security.netapp.com/advisory/ntap-2022060…
https://security.gentoo.org/glsa/202210-02	vendor-advisory
https://cert-portal.siemens.com/productcert/pdf/s…

Impacted products

1 product

Vendor	Product	Version
OpenSSL	OpenSSL	Affected: Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2)

Date Public

2022-05-03 00:00

Credits

Aliaksei Levin

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T00:03:06.287Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openssl.org/news/secadv/20220503.txt"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=64c85430f95200b6b51fe9475bd5203f7c19daf1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20220602-0009/"
          },
          {
            "name": "GLSA-202210-02",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202210-02"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-1473",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:27:10.537811Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-459",
                "description": "CWE-459 Incomplete Cleanup",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-05T16:42:05.402Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2)"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Aliaksei Levin"
        }
      ],
      "datePublic": "2022-05-03T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2)."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "lang": "eng",
              "url": "https://www.openssl.org/policies/secpolicy.html#Low",
              "value": "Low"
            },
            "type": "unknown"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "Denial of Service",
              "lang": "en",
              "type": "text"
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-02-14T00:00:00.000Z",
        "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "shortName": "openssl"
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      "references": [
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        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20220602-0009/"
        },
        {
          "name": "GLSA-202210-02",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202210-02"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf"
        }
      ],
      "title": "Resource leakage when decoding certificates and keys"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2022-1473",
    "datePublished": "2022-05-03T15:15:25.051Z",
    "dateReserved": "2022-04-26T00:00:00.000Z",
    "dateUpdated": "2025-05-05T16:42:05.402Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.